Question: Was Carl_Sagan spouse Carl Woese and Linda Salzman Sagan ?
Paraphrase: Is it true that Carl Sagan had as wife Carl Woese and Linda Salzman Sagan?
SPARQL (Wikidata): ASK WHERE { wd:Q410 wdt:P26 wd:Q310067 . wd:Q410 wdt:P26 wd:Q4526447 }